Enable new callback API

- OnData() channel data handler.
 - ConditionalRun() for devices without incoming data.
 - Header file with common main(), to be extended with getDevice/addCustomOptions.
 - Update examples (MQ/Tutorial3) to use the new API and config.
 - NewSimpleMessage() for simpler creation of small messages (additional copy).
 - Replace SetProperty/GetProperty with fConfig access.
 - Runtime configurable channel names for common devices.
 - Configurable logging interval per channel.
 - FairMQMultiplier for distributing same data to multiple outputs.
 - Cleanup state machine messages.
 - Cmd option to toggle signal handling.
 - Simpler API for send/receive timeouts.
 - Enable --log-to-file.
 - Fix coverity issues, warnings.
 - Various code cleanup and minor tweaks.

fairmq/options/FairProgOptions.h

@@ -54,7 +54,6 @@
  * }
  */
 
-
 namespace po = boost::program_options;
 namespace fs = boost::filesystem;
 
@@ -150,10 +149,10 @@ class FairProgOptions
 
     // Description which is printed in help command line
     // to handle logger severity
-    std::map<std::string,fairmq::severity_level> fSeverityMap;
+    std::map<std::string, FairMQ::severity_level> fSeverityMap;
     po::options_description fVisibleOptions;
 
-    std::string fVerboseLvl;
+    std::string fVerbosityLevel;
     bool fUseConfigFile;
     boost::filesystem::path fConfigFile;
     virtual int NotifySwitchOption();